Home / 1,685.28-2,527.92-1,108.02

Finding the Fourth Proportional to 1,685.28, 2,527.92 and 1,108.02

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Solution

The fourth proportional to 1,685.28, 2,527.92 and 1,108.02 is: 1,662.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,685.28 : 2,527.92 = 1,108.02 : x
  2. Step 2: Convert to fraction form
    1,685.28/2,527.92 = 1,108.02/x
  3. Step 3: Cross multiply
    1,685.28x = 2,527.92 × 1,108.02
  4. Step 4: Simplify right side
    1,685.28x = 2,800,985.92
  5. Step 5: Solve for x
    x = 2,800,985.92/1,685.28
  6. Step 6: Final answer
    x = 1,662.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.